FIELD: chemistry.
SUBSTANCE: invention relates to inorganic reversible heat indicator based on complex compound - potassium hexa(isothiocyanato)chromate(III) hydrate. Composition of heat indicator is characterised by chemical formula K2[Cr(NCS)6] 3.33H2O.
EFFECT: creation of novel reversible thermochromic material, which has ability to reversibly change colouration at heating to temperature 120 degrees, accessible in obtaining and convenient in application in practice.
1 ex
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